Tig

iTrader: (2)

This is the block I have.
GEN4 6.0 Cast Iron Block.

I was told it was a flood motor but after further inspection and during disassembly, it had a spun cam bearing. Is that common?

I have not seen many, if any builds using this block. Why is this?
Is it not a desired block? I understand it has VVT but that can be deleted.

I finally found a machine shop that would talk to me, and after chatting with him for a while he talked me into doing a stock rebuild with a cam and some head work. Since its going to be my DDer (07 Tahoe 2wd), that's fine with me as I am not looking to break any records and the bigger motor will surely put a smile on my face.

How much would have to be removed to make a 6.0 into a 6.2?
Should I run a honing brush through the cylinders to try and clean things up before bringing it to the machine shop?
Will he give me an idea of where to go with the build? Cam specs, valve train info, piston and rods specs?

Sorry for the scattered questions
Thanks for the help, thoughts and opinions.

Wolftrk99

iTrader: (5)

Hes probably gonna use a stock cam, crank and rods, wanna say 6.2 is 4.060 bore where as 6.0l 4.0" is 364, .030 over is 370 and .060 is 376, which is 6.2..... No point in honing if its goin to machine shop to be assembled theyll do it again once they get crank and rod bearings squared away, whether turning crank line hone crank journals or whatever it needs, and they can meausre the bores to make sure everything is straight.... And round.... Of youre having machine shop assemble everything let them do it youre paying for it, at very least if you ask him he should be able to provide part numbers etc on everything he put into it....

Gadgetized

iTrader: (9)

Nothing wrong with those blocks. I am building one right now. What are your goals? I'm doing a budget build twin turbo engine out of it. The heads shouldn't need much work, the 823's flow real well.

BigBlock90

iTrader: (4)

I have my 03 block 6.0 at the machine shop right now. Im doing LS3 rods and pistons in it and the bore size for those pistons to make it a 376 is .065 for the bore.

Wolftrk99

iTrader: (5)

823 heads and l76 intake here, as well on an 04 6.0 bored .030

1FastBrick

iTrader: (17)

These engines typically spin the cam bearings only when there run low on oil. Some are repairable and others are not.

Did it just spin 1 cam bearing or several?

Make sure the block is still useable before you do anything.

Wolftrk99

iTrader: (5)

Somehow i missed it was acam bearing that spun, good for catch brick

Wolftrk99

iTrader: (5)

What cam are you running in it???

Tig

iTrader: (2)

Thanks for the replies guys, I appreciate it.

Wolftrk99,
I'm hoping to use the stock crank. I'll be providing all the parts. I'm also curious as to what cam to go with. Will this info be provided when I inquire about my valve train parts?
I just want to make sure the block is going to be useable, keeping my fingers crossed.

Gadgetized,
My goals?
Its going in my 07 Tahoe 2wd, daily driver. No towing, very little hauling but mostly just a fun street truck with the occasional spirited run up the windy country roads. I'd like to get 400whp if possible and still stay reliable, for now. Is that a realistic number?
Future plans are hopefully a turbo. This will have to be after I swap to an 80 trans, which is in the very near future.
The heads will get all new parts and since they will be stripped down I figured I'd clean them up.

BigBlock,
What machine shop are you using?


1FastBrick,
Thanks for the info, I appreciate it.

It spun one bearing, second from the rear.

I'm hoping its still useable. What would make a non useable core?

Wolftrk99

iTrader: (5)

Youll need to match the springs etc to the cam so you need figure that out first, i would suggest having one specd based on your goals, wishing i had to begin with!!!